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Finding the Fourth Proportional to 226,911, 313,137.18 and 126,315.48

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Solution

The fourth proportional to 226,911, 313,137.18 and 126,315.48 is: 174,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,911 : 313,137.18 = 126,315.48 : x
  2. Step 2: Convert to fraction form
    226,911/313,137.18 = 126,315.48/x
  3. Step 3: Cross multiply
    226,911x = 313,137.18 × 126,315.48
  4. Step 4: Simplify right side
    226,911x = 39,554,073,197.55
  5. Step 5: Solve for x
    x = 39,554,073,197.55/226,911
  6. Step 6: Final answer
    x = 174,315.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.